div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: traegersciencerockstraegersciencerocks1516pdffilesphet_pendulum_keypdf · The Pendulum -- Introduction to Harmonic Motion PhET Lab frequency the number of complete cycles src=https:reader030fdocumentsusreader030viewer20220216225b9116d509d3f2b86e8d6a12html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: traegersciencerockstraegersciencerocks1516pdffilesphet_pendulum_keypdf · The Pendulum -- Introduction to Harmonic Motion PhET Lab frequency the number of complete cycles src=https:reader030fdocumentsusreader030viewer20220216225b9116d509d3f2b86e8d6a12html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: traegersciencerockstraegersciencerocks1516pdffilesphet_pendulum_keypdf · The Pendulum -- Introduction to Harmonic Motion PhET Lab frequency the number of complete cycles src=https:reader030fdocumentsusreader030viewer20220216225b9116d509d3f2b86e8d6a12html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdiv